Stop guessing where your money goes.

The high-precision financial ledger built for engineers and thinkers. Track transactions with sub-millisecond precision, automate envelopes, and monitor accounts with developer-grade clarity.

GET STARTED FREE EXPLORE LEDGER

mexpense --environment=production --ledger=live

SYNCED

Net Balance+14.2%

$48,290.40

4 active accounts verified

Monthly Inflow

$12,450.00

Paychecks + Dividends

Monthly Outflow-2.8%

$3,842.60

74.2% under monthly ceiling

Recent Verified Ledger EntriesShowing 4 of 1,280

Stripe Payout - Enterprise ContractINCOME

+$8,500.00

AWS Cloud InfrastructureINFRA

-$214.20

GitHub Copilot EnterpriseDEV TOOLS

-$39.00

Auto Transfer to High Yield VaultSAVINGS

$1,500.00

ENGINEERED FOR FINANCIAL CLARITY

Everything you need to debug your spending habits.

Traditional budgeting apps treat you like a toddler. MExpense gives you the power, speed, and precision of a modern observability stack.

Sub-Millisecond Speed

Powered by Bun runtime and PostgreSQL with indexed transactions. Input entries in seconds with automated hotkeys and quick action FAB.

BENCHMARK: <12ms DB ROUNDTRIP

Dynamic Budget Envelopes

Establish category guardrails that roll over month-to-month. Get immediate visual alerts long before your accounts experience overflow.

AUTOMATIC MONTH ROLLOVER

Instant CSV & Excel I/O

Never get locked in. Export sanitized ledger histories to CSV or Excel with one click. Import statements from any banking provider seamlessly.

STANDARDIZED SCHEMAS

COMMAND-LINE POWER

Input transactions at the speed of thought.

Whether using our Quick Transaction FAB modal or analyzing ledger categories, everything in MExpense responds with instantaneous feedback. No bloated ads, no upsells, and zero third-party telemetry.

Configurable Multi-Currency formatting

Bulk batch deletion & batch categorization

Role-based admin access and security logs

ledger-query.ts

TypeScript + Prisma

import { db } from "@/src/lib/db";

// Aggregate monthly spend against envelope target

export async function auditBudgetHealth(userId: string) {

const summary = await db.orm.transactions.aggregate({

where: { userId, type: "expense" },

_sum: { amount: true },

});

return {

spent: summary._sum.amount ?? 0,

status: "OPTIMAL_WITHIN_BOUNDS",

};

}